The Cooler,fluid,industrial, cataloged under National Stock Number 4420-01-559-9082, is classified within Federal Supply Class 4420 (Heat Exchangers and Steam Condensers) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is Rotron Incorporated. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4420-01-559-9082 |
| Primary Part Number | 1623-34 |
| Item Name | Cooler,fluid,industrial |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Rotron Incorporated |
| Status | ACTIVE |
| Heat Transfer Method | INDIRECT |
| Style Designator | UPRIGHT STRAIGHT FINNED TYPE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1623-34 PRIMARY | Rotron Incorporated (USA) |
NSN 4420-01-559-9082 is a Cooler,fluid,industrial, manufactured by Rotron Incorporated, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-559-9082 has 1 manufacturer part number on file: 1623-34 (Rotron Incorporated).
1 possible match (shared part number, not a government interchangeability claim): 6695-01-641-8623. Verify interchangeability with system specifications before substitution.
Key specifications for 1623-34: Heat Transfer Method: INDIRECT; Style Designator: UPRIGHT STRAIGHT FINNED TYPE; Part Name Assigned by Controlling Agency: CORE, HEAT EXCHANGER; End Item Identification: AN/USQ-172(V) RADAR SYSTEM. 2 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.